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vtune returns error when analysis uarch-exploration

oleotiger
Novice
1,009 Views

I'm using Intel(R) oneAPI VTune(TM) Profiler 2021.1.1 Gold (build 613804).

When I wanna collect uarch-exploration with command "vtune -collect uarch-exploration -- sleep 3", I got errors like:

"vtune: Error: Cannot configure sampling event groups. The collection is terminated.
Use -knob event-config=? to see the list of available events for the target.
vtune: Collection failed."

I found that the error occurs when "pmu-collection-mode=detailed" where detailed is the default value.

"vtune -collect uarch-exploration -knob pmu-collection-mode=detailed -- sleep 3" returns the same error message.

But "vtune -collect uarch-exploration -knob pmu-collection-mode=summary -- sleep 3" works well.

 

How could I solve this problem?

 

0 Kudos
17 Replies
Kirill_U_Intel
Employee
978 Views

Hi,

Could you share bad result directory?

Kirill

oleotiger
Novice
963 Views

OK. The detailed directory is compressed and attached.

In r017ue-bad.vtune

<?xml version="1.0" encoding="UTF-8"?>
<root>
<rdmgr>
<timestamp type="u64_t">1616029496</timestamp>
<hostname type="string">localhost.localdomain</hostname>
<os type="string">linux</os>
<product type="string">Intel® oneAPI VTune™ Profiler 2021.1.1 Gold</product>
<buildNumber type="s32_t">613804</buildNumber>
<logicalCPUCount type="s32_t">104</logicalCPUCount>
<physicalCoreCount type="s32_t">104</physicalCoreCount>
<processorPackageCount type="s32_t">4</processorPackageCount>
<CPUFrequency type="s64_t">3000000000</CPUFrequency>
<CPUFamily type="s32_t">6</CPUFamily>
<CPUModel type="s32_t">85</CPUModel>
<CPUStepping type="s32_t">11</CPUStepping>
<CPUBrandName type="string">Intel(R) Xeon(R) Platinum 8365HC CPU @ 3.00GHz</CPUBrandName>
<isa type="string">avx512</isa>
<collectionTimeBegin type="u64_t">1616029496</collectionTimeBegin>
<collectionTimeEnd type="u64_t">1616029497</collectionTimeEnd>
<variables>
<at type="string">ue</at>
</variables>
</rdmgr>
</root>

 

oleotiger
Novice
960 Views

What's more, when I collect uarch metrics with command:  vtune -collect uarch-exploration -knob pmu-collection-mode=summary -target-pid=9215

Here the pid is a process of wrf.exe in openmpi application locally.

I got a weird result:

20210318-093614(WeLinkPC).png

 

I'm sure there are memory access and L3 miss rate is almost 80% monitoring with pcm.

Why I got 100% core bound?

Xiaojun_H_Intel
Employee
954 Views

I encountered the same issue with 2021.1 version when I was analyzing an application on a remote server.

oleotiger
Novice
942 Views

So how to solve the problem?

Is there any way to get another version of vtune that can work correctly?

 

JananiC_Intel
Moderator
932 Views

Hi,


Thanks for the update.


We will check on this internally and let you know.


Regards,

Janani Chandran


DMITRY_T_Intel
Employee
920 Views

Hi,

I escalated this issue to development. I will let you know as soon as I get any information.

Thank you!


Dmitry_R_Intel1
Employee
913 Views

This issue should go away in the next VTune 2021.2.0 release which is currently planned to happen next week.  

oleotiger
Novice
906 Views
Thank you for reply. Looking forward for the next version.
DMITRY_T_Intel
Employee
905 Views

Hi,

Developers told me that the issue should be fixed in the 2021.2 release. Please try the 2021.2 release. Can I close this case?

Thanks.


oleotiger
Novice
898 Views
Dmitry_R_Intel1
Employee
894 Views

That was the issue on VTune side. You did everything correctly.

oleotiger
Novice
885 Views

OK. I think you can close this issue.  I will keep concern on release of vtune 2021.02. Thank you for prompt reply.

oleotiger
Novice
861 Views

Is there an exact date that vtune  2021.2  will be released?

I'm waiting for the new version for bug fixing.

DMITRY_T_Intel
Employee
859 Views

Hi,

The 2021.2 release is planned for this week.

Thanks.

 

oleotiger
Novice
842 Views
DMITRY_T_Intel
Employee
819 Views

Hi,

Sorry, it is a little bit delayed and should be available on this week.

Thanks.

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